Among those calling in was Henry Winkler, who was one of Rubins favorite guests.
Jerry OConnell, another regular on the show, spoke with the anchors on air.
The man was a legend.
Sam RubinEmma McIntyre/Getty Images for Turner
Everyone is going to have a story about how Mr. Rubin touched them, personally.
My first live interview was with Sam at KTLA.
Sam Rubin was a LEGEND.
Grunberg also took to Twitter to express his feelings.
I am numb and shocked at the news of my friend Sam Rubin passing.
I cant believe this news.
So devastating and sad.
Thinking about his beautiful family…pic.twitter.com/xthdAOvGha
FormerNCISstar Pauley Perrette told KTLA, I just cant believe this.
Sam was so different than everyone else in this whole industry.
Part of that job is just endless interviews, and it just wasnt my favorite part of the job.
But Sam was different.
Barbara Beck, one of the original co-hosts of the KTLA Morning News, also remembered her colleague.
I have already been asked, How will they (KTLA) replaceSam Rubin?
There is only one answer: Thats impossible.
Rest in peace, Sammy.
I did my first interview with him in something like 93, and countless times over the years.
He loved actors and movies.
He made everyone feel comfortable and it was always fun and easy.
He was an institution.
We…
Devastated by this news.
I truly loved Sam, who was so supportive of me and the industry in general.
He was the best.
I cant quite process him being gone.
Sending so much love to his family and friends.
His smile and his genuine excitement for all things Hollywood ever present.
In nervous situations he was a buoy of kindness.
I will miss him.pic.twitter.com/rAG8DZ777q
So sad to learn that weve lost Sam Rubin.
It was always a pleasure to see him and to be in his presence.
My condolences to his family and fans.https://t.co/xWDA8wY787
Condolences to the family of@SamOnTV.
This is shocking news.
@SamKTLAwas a friend.
I enjoyed all the times I got to visit him at KTLA.Life is short.
Live, love and laugh every chance you get.
And let the folks you love know that you do.
Sam was a genuine sweetheart- entirely a gentlemanhttps://t.co/nc4sS3t2eT
This is a shocking loss!!
You were an important part of our industry for so long.
Sending condolences to your loved ones and the@KTLAfamily#RestInPeacepic.twitter.com/mJUDVLOkaw
Sam Rubin…always a gentleman.
He was the President of entertainment news in this business.
Kind, funny and the best at this job.
He will be sorely missed.
My condolences to his family and loved ones and everyone at KTLA.
I have known him for decades.
Everyone in our business loved Sam.
He loved movies and was always smiling when he was at the theatre.
It was a treat for us whenever he came by for a story.
This picture is from when he did a mini-handprint on a Countdown to the Oscars Show.
An LA morning news fixture & entertainment reporter, Sam worked at@KTLAfor 30+ years covering the industry.
Condolences to his wife, 4 children & colleagues.#SagAftraMembersince 1988https://t.co/X0RF5p7vJB
#RIP, Sam Rubin.
Growing up in LA, I watched your career for many years.
My heart goes out to his beautiful family at home & his incredible family at KTLA.
You could feel the love when you walked on set.
